Every time when a user runs a powerapp with connectors for the first time, they will receive a popup asking their consent to use the connectors in the specific app.

User Consent Pop-up

Use the Set-AdminPowerAppApisToBypassConsent cmdlet to bypass this pop-up, so that users are are not required to authorize API connections for the input app. The command changes the bypassConsent flag of an app to true. Using this command, end users will observe consent is bypassed for First Party connectors that support single sign-on and custom connectors that don't require authentication. This includes custom connectors with or without a gateway. Read more here.